I see plants with white pistils that havent turned brown and receded back yet, so yes, they arent close to ready yet... but even if they were brown/receding, that doesnt signify "ready", just that its "close"
The only real way to know accurately, is terp color, but he said he has no way of viewing terps, so were kinda just shooting in the dark.. but breeder suggestions will at least give a good educated guess, as to when the plant is likely to be ready. And then, airing on the side of caution, I suggested waiting until the later part of breeder suggested harvest times.
Any plant I've grown, from a reputable breeder, (dinafem, G13 labs, Greenhouse, Barneys, etc) has been fairly accurate to within the breeder suggested harvest time. They almost always go beyond the earliest suggested, but never beyond the latest suggested harvest time... but that's purely anecdotal. I'm sure someone else can say breeder times have never been accurate for them.. but again, without the ability to view terps, you gotta work with what ya got.